19698536

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 44210880

約数和(自身を除く): 24512344

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 67, 88, 104, 134, 143, 257, 268, 286, 514, 536, 572, 737, 871, 1028, 1144, 1474, 1742, 2056, 2827, 2948, 3341, 3484, 5654, 5896, 6682, 6968, 9581, 11308, 13364, 17219, 19162, 22616, 26728, 34438, 36751, 38324, 68876, 73502, 76648, 137752, 147004, 189409, 223847, 294008, 378818, 447694, 757636, 895388, 1515272, 1790776, 2462317, 4924634, 9849268, 19698536]

約数ペア:

[(1, 19698536), (2, 9849268), (4, 4924634), (8, 2462317), (11, 1790776), (13, 1515272), (22, 895388), (26, 757636), (44, 447694), (52, 378818), (67, 294008), (88, 223847), (104, 189409), (134, 147004), (143, 137752), (257, 76648), (268, 73502), (286, 68876), (514, 38324), (536, 36751), (572, 34438), (737, 26728), (871, 22616), (1028, 19162), (1144, 17219), (1474, 13364), (1742, 11308), (2056, 9581), (2827, 6968), (2948, 6682), (3341, 5896), (3484, 5654)]